737 300
Thread Starter
Joined: Jan 2001
Posts: 117
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From: UK
737 300
This might sound daft, I've got a sim ride with Thomsonfly, I know nothing at all about 737's 
Is the 300 EFIS?
I just presumed it would be 
but I found a picture on the interweb and its titled 737 300 and its clockwork. can somone clear this up for me?
Thanks
Is the 300 EFIS?
I just presumed it would be but I found a picture on the interweb and its titled 737 300 and its clockwork. can somone clear this up for me?Thanks
Joined: Oct 2003
Posts: 182
Likes: 0
From: London
A little history might help. When the 300 was introduced many arilines had large fleets of -200s which had conventional instruments.
Some went for the all EFIS version, but others such as BA wanted their crews to be able to either fly both types or switch easily from one to the other so Boeing offered various options.
One was EFIS plus conventional ASI and engine instruments, another was EFIS plus conventional ASI but with tv screen engine instruments. I think it was very much a case of mix and match.
By the time the 400 and later series were launched, then the aircraft was modified in many ways with new hydraulic systems (one electric and one engine driven per system, rather than one with two engine pumps and the other with 2 electric), new electrics with 2 batteries etc. etc.
Whilst options were still available the variations were probably less.
Many of the 300's still flying now were these early hybrid aircraft and depending on who first ordered them the layout will vary, both in instrumentation and autopilots etc.
Some went for the all EFIS version, but others such as BA wanted their crews to be able to either fly both types or switch easily from one to the other so Boeing offered various options.
One was EFIS plus conventional ASI and engine instruments, another was EFIS plus conventional ASI but with tv screen engine instruments. I think it was very much a case of mix and match.
By the time the 400 and later series were launched, then the aircraft was modified in many ways with new hydraulic systems (one electric and one engine driven per system, rather than one with two engine pumps and the other with 2 electric), new electrics with 2 batteries etc. etc.
Whilst options were still available the variations were probably less.
Many of the 300's still flying now were these early hybrid aircraft and depending on who first ordered them the layout will vary, both in instrumentation and autopilots etc.
Joined: Jan 2005
Posts: 254
Likes: 0
From: Hong Kong
I flew both -300s and -400s with round dials. The reason being exactly as seat1a states, the airlines originally planned to fly them as a mixed fleet with the -200s.
The Southwest pilots fly the NG in a mixed fleet with round dial airplanes. They fly around looking at a TV picture of round dials. Strange the ways things are standardised sometimes......
At least they do look at a map on thier ND.
The Southwest pilots fly the NG in a mixed fleet with round dial airplanes. They fly around looking at a TV picture of round dials. Strange the ways things are standardised sometimes......
At least they do look at a map on thier ND.
Joined: Mar 2001
Posts: 4,563
Likes: 35
From: I wouldn't know.
Where do you find
in a 737 classic? If you mean the EIS (electronic engine instrument system) that was offered as an option after the first couple years and later on was standard with the round dials offered as an option. However EIS is still a round dial system just with smaller dials and using electronic display units with the inbuild warning feature for hot/hung starts.
tv screen engine instruments
